package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

/**
 * 执行DQL语句 --select
 */
public class JDBCDemo5 {
    public static void main(String[] args) throws SQLException {
        //需求:查询teacher表中每个老师的id,name,salary,title
        Connection conn=DBUtil.getConnection();
        Statement state =conn.createStatement();
        String sql="SELECT id,name,salary,title from teacher";

        ResultSet rs=state.executeQuery(sql);
        while(rs.next()){
            int id =rs.getInt("id");
            String name =rs.getString("name");
            double salary =rs.getDouble("salary");
            String title =rs.getString("title");
            System.out.println(id+"--"+name+"--"+salary+"--"+title);
        }
         conn.close();
    }
}
